JPH0340188Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention has a special structure for the cushion body, so that it can be used in flower arranging, tea ceremonies, calligraphy, etc., or during congratulations and condolences.
The present invention relates to a convenient and portable air-filled seat cushion that allows one to comfortably sit upright on the floor for a long time without using a chair or the like.

(b) Prior art and its problems Traditionally, ``Seiza'' has been essential as one of the basic postures of etiquette, and the movement of ``Seiza'' has been practiced on tatami mats, carpets, etc. Numerous efforts have been made to make it more comfortable wherever you are.

However, all of the conventional cushions and cushions only provide one of the following: stable support for the upper body when sitting upright, cooling effect on the lower limbs, cushioning effect, etc.; It is not possible to maintain that posture for a long period of time, and the pressure from the body pressure on the upper and lower limbs causes blood circulation disorders in both parts.
Patients often experience numbness-like pain and have to endure the pain, and the filling material is bulky and elastic, such as cotton or sponge, making it difficult to carry. It has the disadvantage that it cannot be easily used.

(c) Problems to be solved by the invention The problems to be solved by the invention, that is, the purpose of the invention is to eliminate the conventional drawbacks,
It prevents the numbness in the lower limbs that tends to occur when sitting upright, allowing you to maintain a stable sitting posture for a long time, and is lightweight and compact, making it easy to carry outdoors. The present invention provides an encapsulated seat cushion.

(d) Means for solving the problems The present invention has the following structure in order to achieve the object (c) above. That is, the present invention has an internal structure in a non-stretchable, flexible airtight bag that has an external shape that can be inserted between both lower legs when the legs are bent in a sitting position, and a thickness that is such that the lower legs are not compressed by body pressure when the legs are bent in the sitting position. At least one of the opposing surfaces is connected and shaped by a non-stretchable flexible member, and a check valve is provided at the air sealing port which can be freely degassed in the airtight bag.

The outer shape of the airtight bag used in the present invention is approximately a rectangular parallelepiped, but other shapes may be used as long as they provide the effects specific to the present invention.

(e) Effects of the present invention Since the present invention has the above-mentioned configuration, it exhibits the following effects.

(a) Since the airtight bag body has an external shape that can be inserted between both lower legs bent in the sitting position, only the buttocks are supported by the airtight bag body, making it possible to easily bend both lower limbs in the sitting position and maintain a stable posture.

(b) The airtight bag is made thick enough to prevent body pressure from compressing both lower thighs when sitting, so it supports the buttocks at a height that prevents body pressure from being applied to the lower legs. It has the effect of preventing blood circulation disorders.

(c) Since the cushion is made of a non-stretchable, flexible, airtight bag, it can be folded in any way and takes on a small, conveniently portable shape when not in use.

(d) By connecting and retaining the shape of at least one internally facing surface of the airtight bag with a non-stretchable flexible member, if both the upper and lower surfaces are connected and retain their shape, the upper surface will not move excessively upward when body pressure is applied. without bulging,
By preventing instability in the user's position, and by connecting and maintaining the shape of the opposing sides, both lower limbs will not bulge out to the side when body pressure is applied, and the user's buttocks will not drop excessively. It is possible to prevent the occurrence of "numbness" by suppressing the body pressure load on the body, and has the effect of preventing the airtight bag from deforming due to body pressure during use.

(e) By providing the airtight bag with an air inlet that can be freely degassed, it can be degassed so that it is not bulky and easy to carry when not in use, and can be easily filled with air when in use. A predetermined shape can be formed by

(f) By installing a check valve in the air sealing inlet,
It has the effect of preventing air leakage against excessive body pressure during use, and can also adjust the internal air pressure.

(F) Embodiment Figures 1 and 2 show an embodiment of the air-filled seat cushion of the present invention, and Figure 1 is a partially cutaway perspective view showing its appearance. FIG. 2 is an enlarged sectional view of the air sealing port.

First, an air-filled seat cushion as shown in FIG.
The bag body 1 is formed into a substantially rectangular parallelepiped with a size of about cm, and at the same time its upper and lower opposing inner surfaces are connected and shaped by heat-sealing or the like with a non-stretchable flexible member 2 such as a vinyl chloride sheet. is provided with an air supply/discharge port 4 having a check valve 3 as shown in FIG.

The thus obtained air-filled seat cushion of this example can prevent the numbness of the lower limbs that tends to occur when sitting upright for a long period of time, and can be easily carried to any location such as outdoors. It was possible to use it without causing pain and to hold events without being noticed by others, even at official occasions where one had to sit upright.

(g) Effects of the present invention Since the present invention has the above-mentioned configuration and operation, it has the following effects.

Since the airtight bag has a shape that allows it to be inserted between both lower legs when sitting, only the buttocks are supported, making it easy to bend both legs while sitting, and supporting body pressure in a stable posture, allowing the user to sit upright. It can be used without being noticed by others even at official occasions, and events can be carried out safely.

The airtight bag body is made thick enough to prevent the lower limbs from being compressed by body pressure when sitting, so there is no excessive bending at the knees, the lower limbs are not compressed by body pressure, and blood circulation problems are prevented. This allows you to sit comfortably for long periods of time without feeling numbness in your legs.

By constructing the cushion from a non-stretchable, flexible, airtight bag, it can be folded into a small, conveniently portable shape when not in use, and is lightweight, so you can carry it anywhere without hesitation. .

By connecting and maintaining the shape of the internally facing surfaces of the airtight bag with a non-stretchable flexible member, the airtight bag can prevent deformation due to body pressure when sitting upright and exhibit a shape-retaining effect. Compared to conventional air-filled cushions, this provides a more stable sitting experience. When the upper and lower opposing inner surfaces are connected, the body pressure-bearing surface does not bulge out when sitting upright, and therefore does not give a feeling of pressure to the upper limbs, and even when the body pressure shifts slightly, the body pressure-bearing surface does not bulge out. It does not give a feeling of instability to the body, and if the opposing inner surfaces of the front, back, left, and right sides are connected, the sides of the airtight bag will not bulge outward even when sitting upright, so the bag will not bulge out due to body pressure. Since the height of the cushion can be maintained without being crushed, pressure on both lower limbs that are bent in a sitting position can be reliably prevented.

By providing an air supply/exhaust port in the airtight bag, when not in use, the internal air can be evacuated and the bag can be contracted into a compact shape that is convenient to carry.
It is easy to handle, and if the air supply and discharge port is installed so that it can be retracted into the airtight bag body, the air supply and discharge port will not protrude even if it is inserted between both lower limbs when sitting upright. It does not cause discomfort due to contact with the lower limbs, and it is not noticeable to others.

By installing a check valve at the air supply and exhaust port,
Its practical effects include being able to prevent internal air leakage due to body pressure when sitting upright, and the air being sealed in during use to be sealed efficiently without going backwards, making air supply operations easier. is significant.

[Brief explanation of the drawing]

The drawings relate to the air-filled seat cushion of the present invention; FIG. 1 is a partially cutaway perspective view showing the appearance of one embodiment thereof, and FIG. 2 is an enlarged sectional view of the air supply/exhaust port. . 1...Airtight bag body, 2...Non-stretchable flexible member, 3
...Check valve, 4...Air supply and discharge port.

Claims (1)

[Claims for Utility Model Registration] (1) A non-stretchable, flexible product that has an external shape that can be inserted between the lower legs of a sitting person and is thick enough to prevent body pressure from compressing the lower legs of the sitting person. An air enclosure characterized in that at least one internal facing surface of the airtight bag body is connected and shaped with a non-stretchable flexible member, and a check valve is provided at an air supply/discharge port attached to the airtight bag body. Sitting cushion. (2) The air-filled seat cushion according to claim 1, wherein the internal facing surfaces connected and shape-retained by non-stretchable flexible members are the vertically facing internal surfaces of the airtight bag body. (3) The air-filled seat cushion according to claim 1, wherein the internal opposing surfaces connected and shape-retained by non-stretchable flexible members are the front-rear opposing inner surfaces and the left-right opposing inner surfaces of the airtight bag body. .